diff --git a/lib/libc/sys/setfib.2 b/lib/libc/sys/setfib.2
index 7c65c924e00..bf23c7a9779 100644
--- a/lib/libc/sys/setfib.2
+++ b/lib/libc/sys/setfib.2
@@ -52,7 +52,7 @@ may be retrieved by the
 sysctl.
 The system maximum is set in the kernel configuration file with
 .Bd -ragged -offset indent
-.Cd "options	ROUTETABLES=" Ns Em N
+.Cd "options ROUTETABLES=" Ns Em N
 .Ed
 .Pp
 or in